Structure and properties of PVD coatings deposited on aluminium alloys

Tański, Tomasz; Lukaszkowicz, K.

doi:10.1179/1743294412y.0000000033

Cited by 31 publications

(32 citation statements)

References 8 publications

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“…The peaks shifted from (180.22, 182.62 eV) at 31.8 at.% of Zr to (180.03, 182.43 eV) at 48.8 at.% of Zr content, respectively, corresponding to the Zr‐N band . It was observed at 7.1 at.% Zr content that Zr 3d , and N 1s peaks were found to be located at (179.3 eV, 182.62 eV) and 397.3 eV, respectively.…”

Section: Resultsmentioning

confidence: 99%

Effect of Zr content on friction and wear behavior of Cr‐Zr‐N coating system

Fellah

Aissani

Samad

et al. 2017

Int J Applied Ceramic Tech

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Nanostructured Cr‐Zr‐N thin film with different Zr content (0 to 48.8 at.%) was deposited, using an RF magnetron‐sputtering technique. The structural evolution and morphological changes were performed. The tribological performances were evaluated, using a ball‐on‐disk type Oscillating tribometer. The tests were carried out under normal loads of 2, 4 and 6 N, respectively, with an alumina ball (Al2O3) as a counter face. The results showed that the crystallite size of the Cr‐Zr‐N system was reduced to 10.8 nm at 31.8 at.% Zr content. Morphological studies of the films showed that the roughness continuously decreased with increasing Zr content, exhibiting a value of 11.2 nm at 31.8 at.% Zr. The wear rate tends to decrease with the increasing of Zr content to reach a lowest value of 1.95 × 10‐2 μm3.N.μm‐1 at 31.8 at.% Zr. The wear rate and friction coefficient were lower in the samples with 31.8 at.% Zr content. The improved friction and wear resistance were attributed to the grain refinement strengthening mechanism at 31.8 at.% of Zr.

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Section: Resultsmentioning

confidence: 99%

Effect of Zr content on friction and wear behavior of Cr‐Zr‐N coating system

Fellah

Aissani

Samad

et al. 2017

Int J Applied Ceramic Tech

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“…The diffusion was supported by the simultaneous application of pressure during the process. After coating the Mg with the Al alloy layer, the density of the coated sample was 1.86 g/cm 3 .…”

Section: Structure and Compositionmentioning

confidence: 99%

“…Most of the research for automotive applications is based on Al [2][3][4]. Recently, Mg has attracted more attention in many industrial applications, primarily the automotive and aerospace industries, because it is about two-thirds as dense as Al [5,6].…”

Section: Introductionmentioning

confidence: 99%

In Situ Aluminum Alloy Coating on Magnesium by Hot Pressing

Yamanoğlu

2015

Acta Metall. Sin. (Engl. Lett.)

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In the present study, pure magnesium was in situ coated with pre-alloyed Al-Cu-Mg alloy through hot pressing. The produced samples were characterized by means of hardness, wear properties and microstructure characterization. A ball-on-disk test was used to determine the dry sliding wear characteristics of the compacts. The results showed that the hot pressing technique has been successfully applied for producing magnesium parts with compatible wear resistance and hardness to aluminum. The in situ coating of Al on Mg by hot pressing resulted in an increase in hardness of about 30% compared with the pure Mg substrate. The wear rate and friction coefficient of the samples decreased with Al coating and increased with an increase in the applied load during the wear tests, compared with the uncoated material.

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“…Common heat treatments include homogenization, annealing, solution treatment, aging and stress relief. Typical mechanical properties for commonly used casting alloys range from 138-345 MPa ultimate tensile strength and 103-276 MPa yield strength with up to 20% elongation [1][2][3][4][10][11][12][13]. Surface processing using laser treatment can offer a great flexibility such as a minimal process time, reaching few tents of seconds, a minimum thermal distortion and good metallurgical bonding between the fed ceramic powder and the substrate [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Determining of laser surface treatment parameters used for light metal alloying with ceramic powders

Tański

2014

Materialwissenschaft Werkst

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There are presented in this paper the investigation results of microstructure as well hardness investigation of the surface layer of cast aluminium alloys in as-cast state and after laser surface treatment using a high power diode laser (HPDL) with Al 2 O 3 ceramic powder. The purpose of this work was to determine the proper laser treatment conditions for surface treatment of the investigated alloys and to describe the structural changes occurred in the surface layer after laser treatment. For investigation of the obtained structure there was used light as well scanning and transmission electron microscopy. The morphology and size of the ceramic powder particles as well the structure of the remelted aluminium surface layer was possible to determine. After the laser surface treatment carried out on the aluminium cast alloys there are visible structural changes concerning the microstructure as well as distribution and morphology of the fed particles occurred in the sample surface. Concerning the laser treatment conditions for surface hardening also the laser power and ceramic powder feed rate was studied. The structure of the surface laser tray changes in a way, that there are zones detected like the remelting zone and the heat influence zone. This investigation with appliance of a high power diode laser for Al alloys makes it possible to obtain or develop an interesting technology very attractive for different industry branches.Keywords: Manufacturing and processing / laser surface treatment / aluminum cast alloys / laser feeding Dieser Beitrag stellt sowohl die Ergebnisse der Mikrostrukturuntersuchungen, als auch der Härteuntersuchungen der Oberflächenschicht von Aluminium-Gusslegierungen im Gusszustand und nach einer Laser-Oberflächenbehandlung mittels eines Hochleistungsdiodenlasers und Al 2 O 3 Keramikpulver zusammen. Das Ziel dieser Arbeit war die Bestimmung der geeigneten Laserparameter zur Oberflächenbehand-lung der untersuchten Legierungen und die Beschreibung der Strukturänderungen in der Oberflächenschicht nach der Laserzuführung. Zur Strukturuntersuchung wurde sowohl Licht-als auch Transmissions-Elektronenmikroskopie eingesetzt. Es konnte die Morphologie und die Größe der Keramikpulver-Partikel als auch der wiederaufgeschmolzenen Aluminium-Oberflächenschicht bestimmt werden. Nach der LaserOberflächenbehandlung der Aluminium-Gusslegierungen ergaben sich sichtbare Strukturänderungen bezüglich der Mikrostruktur als auch der Morphologie der zugeführten Partikel in der Oberflächenschicht. In Bezug auf die Laserbearbeitungs-Bedingungen zur Oberflächenhärtung wurden die Laserleistung und die Förderrate des Keramikpulvers untersucht. Die Struktur der Laser-Oberflächenmulde ändert sich

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Structure and properties of PVD coatings deposited on aluminium alloys

Cited by 31 publications

References 8 publications

Effect of Zr content on friction and wear behavior of Cr‐Zr‐N coating system

Effect of Zr content on friction and wear behavior of Cr‐Zr‐N coating system

In Situ Aluminum Alloy Coating on Magnesium by Hot Pressing

Determining of laser surface treatment parameters used for light metal alloying with ceramic powders

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